Searching for Patents by Inventor or Assignee

The Patent and Trademark Office Patent Server allows users to search for patents by inventor or assignee from 1976 to the present.

The CASSIS Bibliographic Information disc contains data that allows the user to search for patents granted since 1975 by the inventor's name and, where applicable, assignee information for patents granted since 1969. The complete patents are not available in this file, just the patent number, the inventor's name and address, and the assigne of the patent rights. To see a brief record of the patent, use the patent number to locate that patent in the Bibliographic Information file. The complete patent may be viewed from the PTO web site or by obtaining the USA/Pat DVD that contains the image.

To locate patentee/assignee information for patents granted before 1971, consult the following Indexes:

Official Gazette of the United States Patent and Trademark Office: Patents. Washington: G.P.O.; United States Patent Office. Annual. LOCATION: Morris Library Annex - U.S. Documents (U.S. Doc C21.5:) LOCATION: Internet (http://purl.access.gpo.gov/GPO/LPS24518) 2002- LOCATION: Morris Library - Microforms (CD-ROM 601) 2002- LOCATION: Morris Library - U.S. Documents (Microfilm) 1872-1919: The OG is published weekly and includes an alphabetized index of patentees and assignees.

Index of Patents Issued from the United States Patent Office. Washington: G.P.O.; United States Patent Office. Annual. LOCATION: Morris Library - U.S. Documents (U.S. Doc C21.5/2:) 1915, 1919- LOCATION: Morris Library - Microforms (CD-ROM 601 index): The Index is issued yearly and contains an alphabetical listing of patentees and assignees.

Annual Report of the Commissioner of Patents. Washington: G.P.O.; United States Patent Office. Annual. LOCATION: Morris Library - U.S. Documents (U.S. Doc C21.1/2:): The Report contains a yearly list of patentees listed in alphabetical order. Library has 1847-1993 (incomplete).

Early Unnumbered U.S. Patents, 1790-1836. Woodbridge, CT: Research Publications, 1980. LOCATION: Morris Library - Reference (Ref T223 .D17 R47 1980) Shelved in Patent Alcove: A listing of the early unnumbered patents, many of which were destroyed in the Patent Office fire of 1836. Indexed by date of issue, subject of invention, and patentee name and arranged by the 21 basic classes used at that time.

This page is maintained by Thomas Melvin, Reference Department.

Version: 09/03
Last modified: 08/14/07